pdf_rs/
error.rs

1use std::num::{ParseFloatError, ParseIntError};
2use std::string::FromUtf8Error;
3use crate::error::error_kind::{FLOAT_PARSE_ERROR, INT_PARSE_ERROR, INVALID_UTF8_STR, STD_IO_ERROR};
4
5macro_rules! error_kind {
6    ($(($id:ident,$code:literal,$message:literal)),+$(,)?) => {
7        pub(crate) mod error_kind{
8        $(
9            pub(crate) const $id: super::Kind = ($code, $message);
10        )+
11    }
12    };
13}
14
15pub(crate) type Kind = (u16, &'static str);
16
17pub type Result<T> = std::result::Result<T, Error>;
18
19/// Enumurate all error kind
20error_kind!(
21    (INVALID_PDF_VERSION, 1000, "Invalid PDF version"),
22    (STD_IO_ERROR, 1001, "Std IO Error"),
23    (INVALID_PDF_FILE, 1002, "Invalid PDF file"),
24    (TRAILER_NOT_FOUND, 1003, "Trailer not found"),
25    (EOF, 1004, "End of file"),
26    (INVALID_UTF8_STR,1005, "Invalid UTF8 string"),
27    (INT_PARSE_ERROR,1006, "Int parse error"),
28    (INVALID_CROSS_TABLE_ENTRY,1007, "Invalid cross table entry"),
29    (TRAILER_EXCEPT_A_DICT,1008, "Trailer except a dict"),
30    (INVALID_NUMBER,1009, "Invalid number"),
31    (FLOAT_PARSE_ERROR,1010, "Float parse error"),
32    (EXCEPT_TOKEN,1011, "Except a token"),
33    (STR_NOT_ENCODED,1012, "String not encoded"),
34    (ILLEGAL_TOKEN,1013, "Illegal token"),
35    (INVALID_REAL_NUMBER,1014, "Invalid real number"),
36    (PARSE_UNSIGNED_VALUE_ERR,1015, "Parse unsigned value error"),
37    (SEEK_EXEED_MAX_SIZE,1016, "Seek exceed max size"),
38    (NO_XREF_TABLE_FOUND,1017, "No xref table found"),
39    (ILLEGAL_STREAM,1018, "Illegal stream"),
40);
41
42#[derive(Debug)]
43struct Inner {
44    pub code: u16,
45    pub message: String,
46}
47
48#[derive(Debug)]
49pub struct Error {
50    inner: Inner,
51}
52
53impl Error {
54    pub(crate) fn new(kind: Kind, message: String) -> Self {
55        Self {
56            inner: Inner {
57                code: kind.0,
58                message,
59            },
60        }
61    }
62}
63
64impl From<Kind> for Error {
65    fn from(kind: Kind) -> Self {
66        Self {
67            inner: Inner {
68                code: kind.0,
69                message: kind.1.to_string(),
70            },
71        }
72    }
73}
74
75impl From<std::io::Error> for Error {
76    fn from(e: std::io::Error) -> Self {
77        Self {
78            inner: Inner {
79                code: STD_IO_ERROR.0,
80                message: e.to_string(),
81            },
82        }
83    }
84}
85
86impl From<FromUtf8Error> for Error {
87    fn from(e: FromUtf8Error) -> Self {
88        Self {
89            inner: Inner {
90                code: INVALID_UTF8_STR.0,
91                message: e.to_string(),
92            },
93        }
94    }
95}
96
97
98impl From<ParseIntError> for Error{
99    fn from(e: ParseIntError) -> Self {
100        Self {
101            inner: Inner {
102                code: INT_PARSE_ERROR.0,
103                message: e.to_string(),
104            },
105        }
106    }
107}
108
109impl From<ParseFloatError> for Error {
110    fn from(e: ParseFloatError) -> Self {
111
112        Self {
113            inner: Inner {
114                code: FLOAT_PARSE_ERROR.0,
115                message: e.to_string(),
116            },
117        }
118    }
119}
pdf_rs/error.rs

pdf_rs/
error.rs
